Archive for the Gyro Category

What is the London Crossrail? by Mike Ayris London Crossrail is a 118-kilometre (73-mile) railway line that is under construction in England. It is due to begin full operation in 2018, serving London and its environs by providing a new east-west route across Greater London. Work on […]

Often correct survey instrument selection is over looked till it is too late and the drill hole has been destroyed before a resurvey can be conducted. In Last Month’s Newsletter I talked about the combination of the Azimuth Aligner ® and MEMS Gyro used to determine firstly; the accuracy […]

Recently at the Independence Group groups wholly owned subsidiary Lightning Nickel , Long Mine Downhole Surveys in conjunction with the site geologists conducted a trial to determine the accuracy and repeatability of the MEMS Gyro used in blast hole “ore definition” drilling. The MEMS Gyro was selected […]